OK, we decided to skip the ziplining this year. It totally tweeked my husband's back last summer (hangng upside did not help). We are thinking of trying one of the ATV tours, either Kipu Ranch Tours or Kauai ATV. We love Kipu Ranch in general (that's where Outfitters has their ziplining tours) but I wanted to see if folks had specific comments on either company? Both companies have the family four seaters. This will probably be our only paid activity though I'm still trying to convince the kids to kayak Hanalei River next weekend.